From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52086) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dkxnQ-0001vR-F7 for qemu-devel@nongnu.org; Thu, 24 Aug 2017 15:28:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dkxnP-0004L1-Hy for qemu-devel@nongnu.org; Thu, 24 Aug 2017 15:28:04 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40596) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dkxnP-0004KW-Br for qemu-devel@nongnu.org; Thu, 24 Aug 2017 15:28:03 -0400 From: "Dr. David Alan Gilbert (git)" Date: Thu, 24 Aug 2017 20:27:03 +0100 Message-Id: <20170824192730.8440-6-dgilbert@redhat.com> In-Reply-To: <20170824192730.8440-1-dgilbert@redhat.com> References: <20170824192730.8440-1-dgilbert@redhat.com> Subject: [Qemu-devel] [RFC v2 05/32] migration/ram: ramblock_recv_bitmap_test_byte_offset List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, maxime.coquelin@redhat.com, a.perevalov@samsung.com, mst@redhat.com, marcandre.lureau@redhat.com Cc: quintela@redhat.com, peterx@redhat.com, lvivier@redhat.com, aarcange@redhat.com, felipe@nutanix.com From: "Dr. David Alan Gilbert" Utility for testing the map when you already know the offset in the RAMBlock. Signed-off-by: Dr. David Alan Gilbert --- migration/ram.c | 5 +++++ migration/ram.h | 1 + 2 files changed, 6 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index affb20cb5a..fbb874fb83 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -164,6 +164,11 @@ int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr) rb->receivedmap); } +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset) +{ + return test_bit(byte_offset >> TARGET_PAGE_BITS, rb->receivedmap); +} + void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr) { set_bit_atomic(ramblock_recv_bitmap_offset(host_addr, rb), rb->receivedmap); diff --git a/migration/ram.h b/migration/ram.h index 4db992298a..8720b9de73 100644 --- a/migration/ram.h +++ b/migration/ram.h @@ -54,6 +54,7 @@ int ram_postcopy_incoming_init(MigrationIncomingState *mis); void ram_handle_compressed(void *host, uint8_t ch, uint64_t size); int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr); +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset); void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr); void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr); void ramblock_recv_bitmap_clear(RAMBlock *rb, void *host_addr); -- 2.13.5